Leptomeryx evansi
via iDigBio · CC0 · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- LeptomeryxPBDB
- Diet
- frugivorePBDB, for Leptomerycidae
- Life habit
- ground dwellingPBDB, for Leptomerycidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Artiodactyla
Time the record covers
At least 4.4 million years on record.
The record covers at least 33.9 Mya to 29.5 Mya. No occurrence read is dated outside 37 Mya to 18.5 Mya.
45 occurrences of Leptomeryx evansi on record, most of them in the Oligocene. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
45 occurrencesThese are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
10 formations
- Brule Formation · White River Group25
- Chadron Formation3
- White River Formation3
- Kishenehn Formation1
- Sage Creek Formation1
- Cypress Hills Formation1
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The named rock units Leptomeryx evansi has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.
Leptomeryx evansi and its relatives
OligoceneWhere Leptomeryx evansi and its relatives were recorded in the Oligocene.
Found in the same rock
293 taxa- Palaeolagus haydeni26 sites
- Hypertragulus calcaratus19 sites
- Hesperocyon gregarius18 sites
- Mesohippus bairdi18 sites
- Eumys elegans17 sites
- Ischyromys typus17 sites
- Megalagus turgidus17 sites
- Merycoidodon culbertsonii15 sites
- Daphoenus13 sites
- Hyracodon nebraskensis13 sites
- Palaeolagus burkei13 sites
- Herpetotherium fugax12 sites
- Paradjidaumo trilophus12 sites
- Poebrotherium wilsoni12 sites
- Archaeotherium mortoni11 sites
- Miniochoerus gracilis11 sites
- Altasciurus relictus10 sites
- Dinictis10 sites
- Hyaenodon crucians10 sites
- Hypisodus minimus10 sites
- Hyracodon9 sites
- Ischyromys9 sites
- Palaeolagus intermedius9 sites
- Hyaenodon horridus8 sites
The Paleobiology Database records 45 sites for Leptomeryx evansi, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
26 references- Preliminary biostratigraphy of the White River Group (Oligocene, Chadron and Brule formations) in the vicinity of Chadron, Nebraska5
- A contribution to the Tertiary geology and paleontology of northeastern Colorado5
- Synonymies and reidentifications of North American fossil mammals3
- Analysis of the Preservation of Community Structure in Assemblages of Fossil Mammals3
- Eocene-Oligocene faunas of the Cypress Hills Formation, Saskatchewan2
- Magnetostratigraphy and biostratigraphy of the Eocene-Oligocene transition, southwestern Montana2
- Elocene-Oligocene climatic change in North America: The White River Formation near Douglass, East-Central Wyoming2
- Geology and uranium deposits, Shirley Basin area, Wyoming2
- Paleoecology of the Lower Nodular Zone, Brule Formation, in the Big Badlands of South Dakota2
- The Faunas of the Concretionary Zones of the Oreodon Beds, White River Oligocene2
- Fossil mammals of the Lower Miocene White River beds. Collection of 18922
- Tertiary paleontology of southwest Montana and adjacent Idaho1
Each of the 45 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. 14 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Leptomeryx evansi
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Leptomeryx evansi was found in Smithsonian Open Access and Sketchfab.
MorphoSource was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itLeptomeryx through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Leidy 1853